Press



March 30 1926. 1,578,320

F. B. KEALL PRESS Filed June 12. 1922 3 Sheets-Sheet 1 F. B. KEAi;L

March 30 PRESS Filed Ju'fie 12. 1922 3 Sheets-Sheet 2 March 30 1926. 1,578,320

F. B. KEALL PRESS 7 F d June 2, 1922 3 Sheets-Sheet a Fig W #4 4 84 /N//ENTOB tiom'means is provided on themovable presser member for centering or aligning the manually operable power controlling member wlth respect to the presser member so that upon manipulation of the controlmember to cause a pressure applying operation a the power means for moving the presser tion;

I T Fig. 7 is a section on the line 77 of Fig Fig. 8' is a section onthe line 88 of Fig. 6. i

v Fig. 3' is a section on member laterally is rendered inoperative.

Other features of construction and novel combinations of parts will be described in the specification and pointed outin the appended: claims. v i

l In I the drawings Y "Figure 1 is aside elevation, partly in section, of one form of mechanism"according to the invention applied to a machine of the type shown in theaforementioned specifica- Fig. 2 is aside elevation of partlof the mechanism omitted inFigure 1;

Figure 2; V

Fig. ii's a. plan View, partly in section; of

mechanism shown in Figure 1;

Fig. 5 is a, front elevation, partly in section of a portion of the'inech'anism shown v 'in'Figure r 1 y Fig. (Sis a sectionalielevation of 'ayalve with which the-mechanism 1s provided .In this particular form of the invention 'and'as applied to la machine of the type aforementioned theihandle 10 which controls thetripping of the clutch, by means of which the driving shaft is'c'o'nnected to the drlvlng pulley, is carriedonrthe end of a lever'12 pivoted, so as to be movable vertically and laterally about its pivot 14; which 1s on the upper side of and about midway 'ofthe length of the beam 16. The lever 12:11as

formed on its upper side a finger 18 which :projectsover thejforward end of a bar 20.

Fixed near the forward end of-the bar 20 is acone-ended-pin 22 which pass'esthrough a slot 2% in; the lever 12 extending length- I wise of the lever and'of awldth sufficient to I allow of thepassage of the 'pin'22.z Below the pin 22 the beam 16 has formed on it a boss 26 having upwardly inclined walls '28 leadin -to an ooenin at" thebottom' .e l g 7 I which opening or passage 30 is slightly larger than the diameter of the pin 2 22. When the hand-lever '12 is depressed to trip the clutch of the machine the lower end of the pin 22 engages one of the inclined walls 2 8,'ifthe 'hand lever 12 is at this time displaced laterally of thefcei'iter of the beam. and thehahd-lei 'evr is thereby centralized during its further downward movement.-

' Thebar 2O' at' i ts' rear end'is'bent vertically and is fixedin a boss 32 extending forwardly frmnarmg rotatably mounted on the the-lino 73%?) of forwardly extending arm 36 of a lever 38 pivoted tothe frame of the machine ona I shaft 40. The arm36 is itself ring shaped and surrounds the column 42, the internal diameter of the ring being somewhat larger.

than the. column to allow the arm to'swing aboutothe shaft 40. The arm 86 has an upwardly extending flange about which the ring 34 turns and the ring is held againstf vertical movement by a ring-shaped plate 4+l'fastened on' 'to the flange 7 A, stop 46 on the plate 4 4 limits the upwardmovement of the arm 36 under the'influen'ce of a spring (not shown) attached to the armand to the 2 frame, by "its engagen'ient with a portion of,

the frame. The ring 34: is formed on its outer circumference with bevel teeth 48 which mesh with a bevel-pinion 50"fixed on.

the upper end of a shaft 52 having a bo 5 ing in the arm 36. A collar Mpinned on the shaft .52 belowrthe lower face of -the bearing prevents upward movement of the.

formed on abracke't 64 fixed in the frame of the machine. (The shaft 62 has, pinned on it near its upper enda collar 66 which bears against the upper at its lower end has pinned on it abevelpinion 68. The pinion'68 meshes with a face ofthe bearing, and

bevel-pinion 7O rotatably mounted on a horizontal shaft72. The shaft '72 is' rotatablv mounted in bearings'formed'on the bracket 6e and hasfixed onit abevel-pinion-Yei. The bevel-pinlons 70 and 74. both meshwith' a bevel-gear '76 fixed on the upper end of a shaft, 78'rotatably mounted in a swinging frame 80 hung on the shaft 72. The swing ing frame. 80 has pivotally connected to it near its lower end on a stud "82 one end of a valve-controlling rod 841.; The'rod extends horizontally towards the right of the machine and at its outer end is cam shaped or taperedas' at 85- V The end 85 of the rod 8; passes through 1 the lower slottedendof a tube 86 (Fig. 6)

and'is supported by a pin88 fixed inthe' tube. 'The tube is fixed'by screws9 0 to a cap 92which is fastened to the lower end of .avalv-e casing 94. The valve casing ea is secured in boss 96 formed on abracket 98 (Figs. 1 and 4) fastened by bolts 100 (Fig.

screws 102 (Fig."6)='is a cap 104 recessed at .1) t0 the frame of the machine." Secured I 'to the upper end of the valve casing 9:4 by

106 to receive the upper end of a spring 108' whichat itslower end enters a recess'llO .formed in;the upper end of a plunger 112,

slidinglymountedi in a' central borefofthe'" valve cas ng 94, andto urge the plunger downwardly. The plunger 112 has secured to its lower-end a sleeve 11 1. The sleeveat its upper end hason it a flange 116 which is slotted to receive a screw 1'18'by which the sleeve is attached to the plunger. The sleeve pressure is admitted-from a suitable supply through" a pipe 128 into the recess 122 and passes down the bore 120 of the sleeve 1L1 and through the space betweeirthe lower end of the bore and the tapered end of the plunger 12 1. The oil is then returned to its source of supply by any suitable means. The space between the lower end of the bore 120 and the tapered end ot'the plunger 12 1- is normallysuch that the pressure of the oil in the recess 122 balances the pressure of the spring 108 and the plunger 112 lS lllilllltained in a neutral position (i. e. that shown in Figure 6 of the drawings); It the valve controlling rod St is moved to the right in Figure 6 the plunger'124 will by'reason ot' the tapered end of the rod 84, be raised and the space between the tapered'end of the plunger 124; and lower end of the bore 120 will be more nearly closed so that the pressure of the oil in the recess 122 will-be increasedand the plunger 112 thereby raised againstthe action 01 the spring'108. If the rod 8 1 is moved to the le l'tfin Figure 6 the plunger 12 1 will be lowered and the space between the tapered end of the plunger and lower end of the bore 120 will be increased and the pressure of the oil in the recess 122 lowered and the plunger 112 will be moved downwardly by the spring 108; Theplunger 112 has formed on itenarged portions 140 which control the flow t fluid, under pres-' sure, through various ports and passages formed in the boss 96 and valve casing 9d. These ports comprise an inlet port 14 1-, at the end of inlet pipe lG, connected to a Suitable pump or othersource of supply, an exhaust port L18 through which the fluid.

. returns to the supply, and-ports 150, 15-1 connected to cylinders 158, 160 (Fig. 4)

fixed on opposite ends of the bracket 98" which is provided'with bearings 164:, 166 in which is slidingly mounted a piston 170. Vhen the plunger 112 is raised, as hereinbefore described, the fluid will flow from the inlet port 14 1 up the central bore of the valve casingfltythrough passages 174, 17 1 to a cavity 176 and through the port 154 and a tube 180 (Fig; 4-) to the cylinder 160, and the piston 170- will be moved-length wise in misdirection; -D11 11I1g--'S11Cl1;'11'1OV- me t; flu lhe ot er. cy nder will be exhausted along the pipe 190 (Figs. 1 and 6) through the port 150 along cavity bore of the valve casing 94y and through an opening 198 to the port1 18 and exhaust pipe 200-by way of cavity 202. Conversely if the piston 112 is lo-wered'the fluid will flow in the oppositedirection-and the piston 170 will he moved in the opposite direction.

lVhe n the plunger 112 is lowered, the fluid will flow from the inlet port 144 down the central bore oi the valve casing 94, through passages19 1 and through port 150 to cylinder 158 by way of the tube 190. Drainage tubes 210 are provided to [take the oil from 192 and passages 194,19 1 down the central a collecting cavity 212' in each otthev bearings 164 166;

The piston 170 has formed onits front face a rack 220 which meshes with a gear segment 224. fastened to the beam 16. The

segment 224is concentric with the b'eain sup porting column 42 and is fixed at the rear of the seini-circuar portion of. the beam. The seg'inent is of such a length, (Fig. 1) heightwise or the beam, as to allow of vertical cutting movement; otthe beam without its becoming disengaged fronrthe rac'lr. I The piston 17 0* has fornhedon its upper face asecond rack 230 whiclr meshes with agear the shaft 72.

When it is desired to'move the beam lat-l erally inone direction or the other, the handle 10 is-inoved in that direction and through the toothed ring 84Jand be'vel-plinions 50, 68, the bevelpinion the swinging frame 80 about its pivot shaft 72; The'movement of the swinging"'lE-raine 80 moves thevalve-controlling rod v 84' lengthwise to admit flu d to one or other-of.

thelcylinders 158, The piston is thereby moved eudwise and through the raclt220' and gear segment 2%- swings; the w beam 16 laterally-.= t

During the simultaneous movement of the beanhlti and handle 10 the bevel-pinions'TO andi'e are rotated at thesaine speed in opposite directions the pinion 70 by the movement oiithe handle l0through the toothed ring 3- and the. pinion 74 by the rack 230 onthe ruaperface of the piston 170 so that thexgeai wheel .176 with which they ,both

ineshifis idly-rotated and-no movement is 1 imparted to the swinging franie1:80.

-. Tire-immanent theeam semitones 23%, (Fig. 1) fixed on" the forward'end of 9 V when the handle arrives at the desired position the operator merely ceases to impel it. "Stopping of the handle 10 also stops the rotation of the bevel-pin ion and during continued movement otthe beam 16 the bevel-plnlon 76L eontinnesv to rotate, through the rack 230 011 the upper face of the piston 170, and rotates" the bevel-gear 76 which rolls round the now stationary bevel-pinion 70 and swings the swinging frame in the opposite direction to that in which itwas swung to open the valve at the upper end of plunger 12 1,

and thereby moves the valve toward closing position and stops the movement of the beam. The handle 10 is then depressed to trip the clutch and effect the 1 cutting stroke of the beam; A reverse 'movement of the handle 10 causes the beam to be removed from over the knife to any I desired position determined by thestopping.

of the handle. The control of the valve op: erating rod 84. is exercised both by the operator, through the handle 10 and connec 'tions including the pinions 68,70, and by the beam, through the; pinions 234,-74t, the constructionembodying a diiterential mech anisnrin the operation of whichthe -moving beam tends always to move the valve op= crating rod 8 1 in the opposite direction to that in .which it is initially moved by the operator. As soon as the operator stops moving the handle the beam exercises control of the valvefoperating rod 84 and brings the latter to neutral position the instant the handle'lever 12 and beam are in exact longirtudinal alinement. So longas the handle lever is displaced laterally of the beam the latter will continue to move. It will be observed that movement of the handle lever relatively tothe beam'is always within the same limited range irrespective of the dis tanee traveled by the beani' in reaching the selectedoperative position. I V l'ihe'plunger 112 is so arranged that when the handle is moved to the right 'or left, as the ease maybe, the inlet port 14 1 is opened to admit fluid to the appropriate cylinder 158 or 160, the exhaust opening 19'? or 198 (Fig/6) for that cylinder is closed and the exhaustopening- 198 or 197 for the other cylinder is' opened. When the handle is in its central position on the beam both the exhaust openings are partly open, the en-' larged portions 140 of the plunger 112 being reduced in diameter as at 240 forthe purpose so as to prevent sudden stoppage of thebeam and vibration caused thereby, and

to prevent a vacuum being formed behind the moving piston and consequentlyreturn i movement of the piston caused thereby which might re-openthe valve.

.B approprlate proportioning 111 th s way 'as the-beam catches up with the handle when the latter is stopped, a smooth stoppage of the beam without jerky action can besecureol, and owing tothe use of the relay valve formed bythe parts120, 124, so sensitive a control can be obtained that a barely noticeable displacement of the handle on the beam sets the latter in full motion. Owing to the friction in the extended con necting parts between the pinion 70 and the handle .10, the cessation of impulse on the handle immediatelystops the beam without there being'any need. for a definite reverse puller. resistance on this handle. In

the result the operator is entirely under the illusion that the beam has moved solely by reason of his'own effort, although apparent ly without inertia or momentum, and the advantages or speed of operation and absence of fatigue which result.- tromsuch an arrangement and construction of" parts are manifest. I r i Inoperating with the machine, sheet material is. placed upon awork supporting bed or block (notshown) and a die positioned on the material in accordance with the operators plan for.securingeconomical cut ting of the material', Then .theipress er member or beam 16 is moved, by, proper manipulation 01" the handle 10,- until it arrives over the die whereupon depression of the handle 1-) serves to terminate the lat eral movement of the'presser member and to initiate a pressure applying operation by which the die is forced through the material on the bed; Slightpressure on i3l1t l1gp11(ll8 10 in the desired direction will cause moveient of thepresser member in that direction to uncover the die. These operations are repeated until the material on thebed is converted into blanks of the number and size desired. I

' 'Having described my invention, What I claim as new and desire to'seeure by: Letters Patent of the United States is:]

1. In a machine of the character described,

a work supporting bed, a presser member movable toward and from the bed'in pressure applying operations and also laterally of the bed into and out of operative rela. tion to work located on the bed. power means for moving the presser member lat:

orally over the bed. a manually operable with the relative movementxot. the manually operable member and the presser member into alinement. j 1

2. In am achine of the character described, a ork su -P e a P esselil-l fi t fi movable toward and from the-bed in'pressure applying operations andalsolaterally of the bedinto and out'of operative relation to work located on the bed, power means tor moving the pressernnember laterally over t-hebed, a manually operable.inember mow.

able with the presseranember tor'control ,ment of the presser member to various selected positions over theiworlr supporting bed, and .connectionsbetw'een the presser member and the power means forinainta-ining the latter in operationiso that the manmeans for moving the presser member latua lly operable member may move with. the presser member without affecting its (3011-. trol ofthe power means In a machine of the character described, a work supporting bed,fa pressermember movable toward and from the bed inpressure applying operations and also laterally of the bed into and out of operative relation to work located on the bed, power erallv over the bed, .a manually operable member movable with the presser, member and also relatively theretov for controlling said power means, and connections between the manually operable member andthe power means controlled by the presser member so that the manually operable member may be unaffected by its movementv along with presser memberand may be operative only upon movement relative to thepresser-member. a

4. In amachine of the character described,

' presser. members relatively; movable toward and from each other in pressure applying operations, power means for moving the members relatively to, each other in a lateraldirection, said power-means comprising a differential mechanism, and apmanuallyoperable member movablewith ;t;he 'm'evable presser member for controlling the power means through said mechanism whereby relative movement:otthe. presser membersin a lateral direction may ee-accurately con-. trolled'bythe operator.

5'. In a machine uof the class described, a work supporting bed; a" presser member movable toward and from, the bed .iirpressure applying operations, power-meansfer moving the presser member 1 laterally-- of the bed, anda n'ranually'operable ame-mbefr movable with therpresserzmember :for controlling the powerimcans,- saidpowerr means: including:v dilterential :meob anism, and connections between. sai d- 'mechanism and: the, manually operable, ;meniber and the vpresser member by which movement; of :the presser may beraceurately;controlled; a

. 6min agma chine of ithecharactera described, a work supporting bed, a presser, member member movable toward and fromtlle bed in pres sure applying" op,erations, .powei means. for moving the pressure member laterally of .the bed, a. manually operable member movable withthe presser .member for controlling said power means, saidmanually operable member beingalso mov'able relatively to the p rejsser memb emlml SQ connected to th power means that the distance thev presser inen'iber moves is .directly' proportional to the length of time, the manually operable member is held inv operative position, a and connections between the presser member and the power means for controlling the latter so that the a poweris shutoff when the presser member comes. into predetermined relation withrespeet to themanually operable member. 7. In a machine of the character described, a wvorl: supporting bed, apresser member movable 7 toward. and from the bed in pressure applying operations; power means for moving} the p-resser member late-rally of the-bed, and. a, manually operable member for..- controlling said power. means, said means comprising fluid-operated 'me'cha-nism provided with an inlet valve and exhaust ports whichqremainslightly open when the inlet valve ,isclosechso as to cushion the movement. of thebeam and prevent rebound oftheqbeam during'the operation oft-he inachine. a V I 8.111 a machineof the character described, a work supporting bed, a press-er member movable toward and; from the. bed in pressure applying; operations,[power means: for moving the .presser member; laterally oi the bed, said means-comprisinga'plunger aret .to the presser member-and reciprocable in opposite. directions to move the beam over the bed, meanstor causing fluid to operate selectively on the plunger to'moveythe same, connections; between the plunger and. the rest ofithe power meansrfor controlling the latter, and a manually operablemember for initiating lateral movement of. the presser member. I :9; In aEmachineof the=charactergdescribed, a -;work supporting bed, (a pressermember movable towardandfrom' the bed in pressure applying operations and also laterally comes to rest so th-at the fluid operates as a cushion to ensure aga nst jerking action and prevent rebound i of the; presseri member.

10. In a--maclnne ofi the --charaet:er described, a work sup'portingbed, Presser. members relatively". movable toward and; from each other 1n;pressure;applymg operations and alsorelativelyto each other in a lateral direction into 'andou t of operative position with respect to work located between the presser members, and power means-for moving the pressermembers relatively to each other. in a lateral direction comprising a' hydraulic mechanism having a valve automatically op'erativeto relieve the pressure at the starting and stopping of the lateral movement so as to' ensure smoothness in movement and'the absence of JBI'klllESS and rebound both in starting from a positionoi rest and stopping at the desired operative position. v I a 11. In a machine of the character described, ztwork supporting bed, avpresser member movable toward and from the bed in pressure applying operations and also laterally of the bed into and out of ope "ative position with respect to work locatedon the bed, power means for moving the presser I member laterally of the work supporting bed comprising fluid-operated mechanism, a member for controlling said mechanism movable in one direction'tln'ough force exerted by the operator and movable in a reverse direction through connections with the presser member, and a manually operable member under the control of the operator formoving' the first mentioned member. whereby differential movement of the manually operable member and the presser member con' trols the power means to effect accurate positioning of the presser'member.

"712.,111' a machine of the character described, a work supporting bed, a presser member movable toward and from the bed in pressure applying operations, and also laterally over the bed'into' and out of operative position with respect to work located on 'the bed, power means for moving the presser member laterally of thebed' comprisinga plunger geared directly to the presser member and arranged to be moved in opposite dlrections by fluid under pressure, and valve mechanism automaticallyoperative to reli'eve the pressure-asthe presser member comes torest so that the fluid'operates as a cushion to ensure against jerking action and prevent rebound of the, presser member. 13. In a machine of the character described, a work supporting bed, a presser,

sition of rest and stopping at the desired operative position. 7

14. In a machine of the character def scribedfpresser members relatively movable I toward and from each other in pressure ap plying operations and also 1n a lateral direction relatively to each other into and out of operative relation with respect to workilocated between the presser members, power means for moving onepresser member laser ally of the other comprising fluid operated mechanism, a member for controlling saidmechanism movably in one direction through force exerted by the operator and movable in a reverse direction throughconnections with the movable presser member, and a manually operable-member under the control of the operator for moving saidcontrollin member whereby diiferential movement or the manually operable member and the presser member controls the power means tojetfect accurate positioning of the presser member,

15. In a machine of the character described, a work supporting bed, a presser member movable toward and fromjthe bed in pressure applying operations and alsolau erally over the bed into and outlof operative relation to work located on the bed, power means for moving the presser member laterally vover the bed, a "manually operable vmember movable relatively to the presser member for controlling said power'means, andmeans for returning the manually operable member. into exact alinem-ent with the presser member toeffect disconnection of said p ower means with respect to the presser member.

-16, Ina machine of the character de? scribed, a work supporting bed, a presser member movable toward and from the" bed in pressure applying operations and also laterally over the bed and out of operative relation to work located on the bed, power means for moving the presser member laterally over I the bed and for causing pressure applying,

operations of the presser member, a man? ually' operablemnember -movable relatively to the presser member for controlling the power means, and means for centering said manually operable member with respect to the pressermember upon manipulation of the former to initiate a pressure applying operation whereby the lateral movement 01":

the presser member is discontinued.

Ina machine of the character described, a work supporting" bed, a presser member movable toward and'from the bed in pressure applying operationsand also laterally of the bed into and out of operative relation to work located onthe bed, power means for moving the presser member laterally over the bed and for causing pressure applying operations of the presser atin member, a manually operable member mov-i ser member for centering the controlling member relatively to the presser member whereby lateral movement. of the'presser member ceases upon initiation of a pressure applying movement of the presser member.

18. In a machine of the character described, a work supporting bed, a presser member movable toward and from the bed in pressure applying operations and also lateraly over the bed into andout of opera"- tive relation to work located onthe bet, a post for suaporting the movable presser member for swinging movement over the bed, power means for causing movement of the presser member laterally over the bed, means operating to cushion the movement of the beam and prevent rebound thereof at the termination of a lateral movement of the beam, and a manually operable member for controlling said power means.

19. In a machine of the character described, awork supporting bed, a presser member movable toward and from the bed in pressure applying operations and alsolaterally of the bed into and out of operative relation to work located on the bed, power means for moving the presser member laterally over the bed, apost tor supporting the presser member for swinging movement laterally over the work supporting bed, power means comprising an endwlse movable plunger directly connected to the presser member for moving the latter laterally over the bed, and a manually operable member movable with the, presser member for controlling said power means. 1

20. In a machine of the character described, a work supporting bed, a presser member movable toward and from the bed 'in pressure applying operations and also presser member for controlling the power means, connections between the manually operable member and the power means com- A i i s i I a prising a pivoted member, and connections from the presser member to the pivotedmember whereby the presser member also con trols said power means. 7

21. In a machine ofthe character scribed, a work suliiporting bed, a presser member'movable toward and from the bed in pressureapplying operations and also laterally over the bed into and out of operative relation-to work located on the bed, hydraulic means for moving the presser member laterally over the bed, a post for supporting the presser member for swinging movement lateraly over thework supporting bed, and a manually operable member movable with the presser member for controlling said hydraulic means.

i 22; In a machine of the character described, a work supporting bed, a presser member movable toward andfrom the bed in pressure applying operations and also laterally of the bed into and out of operative relation to work located on the bed, power means for moving the presser member laterallyover the work supporting bed comprising fluid-operated mechanism having a control valve, a manually operable member movable with the presser member for controlling the power means,

presser member also controls said power means. p 1 23. In a machine 01" the class described, a work supporting bed, a presser member 'movable, toward'and from the bed in pressure applying'operations, power means for moving the presser member laterally of. the

bed, and a controller movable with and also relatively to the presser member for controlling the power means tomove the presser member to various positions upon displacement of the controller within the same limited range relatively to the presser member and to bring the presser member to rest simultaneously with the restoration of the controller to "its initial position relative to the PIBSSGI' member.

' In testimony whereof I have signed my name to this specification.

FRANK BYOB-OFT KEALL. 

